Eroare de compilare: user.cpp: In function ‘void solve(long long int, long long int, int, long long int)’: user.cpp:9:7: error: ‘a’ was not declared in this scope if (a <= st && dr <= b) { ^ user.cpp:10:5: error: ‘ans’ was not declared in this scope ans = max(ans, sum[B] + nr); ^~~ user.cpp:14:7: error: ‘a’ was not declared in this scope if (a <= mid) ^ user.cpp: In function ‘int main()’: user.cpp:30:28: error: no matching function for call to ‘max(int&, long long int)’ sum[1] = max(cost[1], 0ll); ^ In file included from /usr/include/c++/6/bits/char_traits.h:39:0, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/sstream:38, from /usr/include/c++/6/complex:45, from /usr/include/c++/6/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/6/32/bits/stdc++.h:52, from user.cpp:1: /usr/include/c++/6/bits/stl_algobase.h:219:5: note: candidate: template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&) max(const _Tp& __a, const _Tp& __b) ^~~ /usr/include/c++/6/bits/stl_algobase.h:219:5: note: template argument deduction/substitution failed: user.cpp:30:28: note: deduced conflicting types for parameter ‘const _Tp’ (‘int’ and ‘long long int’) sum[1] = max(cost[1], 0ll); ^ In file included from /usr/include/c++/6/bits/char_traits.h:39:0, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/sstream:38, from /usr/include/c++/6/complex:45, from /usr/include/c++/6/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/6/32/bits/stdc++.h:52, from user.cpp:1: /usr/include/c++/6/bits/stl_algobase.h:265:5: note: candidate: template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare) max(const _Tp& __a, const _Tp& __b, _Compare __comp) ^~~ /usr/include/c++/6/bits/stl_algobase.h:265:5: note: template argument deduction/substitution failed: user.cpp:30:28: note: deduced conflicting types for parameter ‘const _Tp’ (‘int’ and ‘long long int’) sum[1] = max(cost[1], 0ll); ^ In file included from /usr/include/c++/6/algorithm:62:0, from /usr/include/x86_64-linux-gnu/c++/6/32/bits/stdc++.h:65, from user.cpp:1: /usr/include/c++/6/bits/stl_algo.h:3459:5: note: candidate: template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>) max(initializer_list<_Tp> __l) ^~~